package jdbc;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Scanner;

public class LoginDemo {
    public static void main(String[] args) {
        /*System.out.println("欢迎登陆");
        Scanner  sc = new Scanner(System.in);
        System.out.println("请输入用户名");
        String username = sc.nextLine();
        System.out.println("请输入密码");
        String password = sc.nextLine();*/

        UserInfo userInfo = InputUtil.getInputObject(new UserInfo(),"欢迎登录","登录");
        System.out.println(userInfo);
        try (Connection connection = DBUtil.getConnection();){
            Statement statement = connection.createStatement();
            String sql = "SELECT id,username,password,nickname,age "+
                        "FROM userinfo "+
                        "WHERE username='"+userInfo.getUsername()+"' AND password='"+userInfo.getPassword()+"'";
            ResultSet resultSet = statement.executeQuery(sql);
            if(resultSet.next()){
                System.out.println("登录成功");
            }else{
                System.out.println("登录失败");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
